AxibugEmuOnline/References/virtuanessrc097-master/interp.h
2024-08-05 17:58:53 +08:00

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/*
* This file is part of the Advance project.
*
* Copyright (C) 2003 Andrea Mazzoleni
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* In addition, as a special exception, Andrea Mazzoleni
* gives permission to link the code of this program with
* the MAME library (or with modified versions of MAME that use the
* same license as MAME), and distribute linked combinations including
* the two. You must obey the GNU General Public License in all
* respects for all of the code used other than MAME. If you modify
* this file, you may extend this exception to your version of the
* file, but you are not obligated to do so. If you do not wish to
* do so, delete this exception statement from your version.
*/
#ifndef __INTERP_H
#define __INTERP_H
/***************************************************************************/
/* Basic types */
/***************************************************************************/
/* interpolation */
static unsigned interp_mask[2];
static unsigned interp_bits_per_pixel;
#define INTERP_16_MASK_1(v) (v & interp_mask[0])
#define INTERP_16_MASK_2(v) (v & interp_mask[1])
static inline euI16 interp_16_521(euI16 p1, euI16 p2, euI16 p3)
{
return INTERP_16_MASK_1((INTERP_16_MASK_1(p1)*5 + INTERP_16_MASK_1(p2)*2 + INTERP_16_MASK_1(p3)*1) / 8)
| INTERP_16_MASK_2((INTERP_16_MASK_2(p1)*5 + INTERP_16_MASK_2(p2)*2 + INTERP_16_MASK_2(p3)*1) / 8);
}
static inline euI16 interp_16_332(euI16 p1, euI16 p2, euI16 p3)
{
return INTERP_16_MASK_1((INTERP_16_MASK_1(p1)*3 + INTERP_16_MASK_1(p2)*3 + INTERP_16_MASK_1(p3)*2) / 8)
| INTERP_16_MASK_2((INTERP_16_MASK_2(p1)*3 + INTERP_16_MASK_2(p2)*3 + INTERP_16_MASK_2(p3)*2) / 8);
}
static inline euI16 interp_16_611(euI16 p1, euI16 p2, euI16 p3)
{
return INTERP_16_MASK_1((INTERP_16_MASK_1(p1)*6 + INTERP_16_MASK_1(p2) + INTERP_16_MASK_1(p3)) / 8)
| INTERP_16_MASK_2((INTERP_16_MASK_2(p1)*6 + INTERP_16_MASK_2(p2) + INTERP_16_MASK_2(p3)) / 8);
}
static inline euI16 interp_16_71(euI16 p1, euI16 p2)
{
return INTERP_16_MASK_1((INTERP_16_MASK_1(p1)*7 + INTERP_16_MASK_1(p2)) / 8)
| INTERP_16_MASK_2((INTERP_16_MASK_2(p1)*7 + INTERP_16_MASK_2(p2)) / 8);
}
static inline euI16 interp_16_211(euI16 p1, euI16 p2, euI16 p3)
{
return INTERP_16_MASK_1((INTERP_16_MASK_1(p1)*2 + INTERP_16_MASK_1(p2) + INTERP_16_MASK_1(p3)) / 4)
| INTERP_16_MASK_2((INTERP_16_MASK_2(p1)*2 + INTERP_16_MASK_2(p2) + INTERP_16_MASK_2(p3)) / 4);
}
static inline euI16 interp_16_772(euI16 p1, euI16 p2, euI16 p3)
{
return INTERP_16_MASK_1(((INTERP_16_MASK_1(p1) + INTERP_16_MASK_1(p2))*7 + INTERP_16_MASK_1(p3)*2) / 16)
| INTERP_16_MASK_2(((INTERP_16_MASK_2(p1) + INTERP_16_MASK_2(p2))*7 + INTERP_16_MASK_2(p3)*2) / 16);
}
static inline euI16 interp_16_11(euI16 p1, euI16 p2)
{
return INTERP_16_MASK_1((INTERP_16_MASK_1(p1) + INTERP_16_MASK_1(p2)) / 2)
| INTERP_16_MASK_2((INTERP_16_MASK_2(p1) + INTERP_16_MASK_2(p2)) / 2);
}
static inline euI16 interp_16_31(euI16 p1, euI16 p2)
{
return INTERP_16_MASK_1((INTERP_16_MASK_1(p1)*3 + INTERP_16_MASK_1(p2)) / 4)
| INTERP_16_MASK_2((INTERP_16_MASK_2(p1)*3 + INTERP_16_MASK_2(p2)) / 4);
}
static inline euI16 interp_16_1411(euI16 p1, euI16 p2, euI16 p3)
{
return INTERP_16_MASK_1((INTERP_16_MASK_1(p1)*14 + INTERP_16_MASK_1(p2) + INTERP_16_MASK_1(p3)) / 16)
| INTERP_16_MASK_2((INTERP_16_MASK_2(p1)*14 + INTERP_16_MASK_2(p2) + INTERP_16_MASK_2(p3)) / 16);
}
static inline euI16 interp_16_431(euI16 p1, euI16 p2, euI16 p3)
{
return INTERP_16_MASK_1((INTERP_16_MASK_1(p1)*4 + INTERP_16_MASK_1(p2)*3 + INTERP_16_MASK_1(p3)) / 8)
| INTERP_16_MASK_2((INTERP_16_MASK_2(p1)*4 + INTERP_16_MASK_2(p2)*3 + INTERP_16_MASK_2(p3)) / 8);
}
static inline euI16 interp_16_53(euI16 p1, euI16 p2)
{
return INTERP_16_MASK_1((INTERP_16_MASK_1(p1)*5 + INTERP_16_MASK_1(p2)*3) / 8)
| INTERP_16_MASK_2((INTERP_16_MASK_2(p1)*5 + INTERP_16_MASK_2(p2)*3) / 8);
}
static inline euI16 interp_16_151(euI16 p1, euI16 p2)
{
return INTERP_16_MASK_1((INTERP_16_MASK_1(p1)*15 + INTERP_16_MASK_1(p2)) / 16)
| INTERP_16_MASK_2((INTERP_16_MASK_2(p1)*15 + INTERP_16_MASK_2(p2)) / 16);
}
static inline euI16 interp_16_97(euI16 p1, euI16 p2)
{
return INTERP_16_MASK_1((INTERP_16_MASK_1(p1)*9 + INTERP_16_MASK_1(p2)*7) / 16)
| INTERP_16_MASK_2((INTERP_16_MASK_2(p1)*9 + INTERP_16_MASK_2(p2)*7) / 16);
}
#define INTERP_32_MASK_1(v) (v & 0xFF00FF)
#define INTERP_32_MASK_2(v) (v & 0x00FF00)
static inline euI32 interp_32_521(euI32 p1, euI32 p2, euI32 p3)
{
return INTERP_32_MASK_1((INTERP_32_MASK_1(p1)*5 + INTERP_32_MASK_1(p2)*2 + INTERP_32_MASK_1(p3)*1) / 8)
| INTERP_32_MASK_2((INTERP_32_MASK_2(p1)*5 + INTERP_32_MASK_2(p2)*2 + INTERP_32_MASK_2(p3)*1) / 8);
}
static inline euI32 interp_32_332(euI32 p1, euI32 p2, euI32 p3)
{
return INTERP_32_MASK_1((INTERP_32_MASK_1(p1)*3 + INTERP_32_MASK_1(p2)*3 + INTERP_32_MASK_1(p3)*2) / 8)
| INTERP_32_MASK_2((INTERP_32_MASK_2(p1)*3 + INTERP_32_MASK_2(p2)*3 + INTERP_32_MASK_2(p3)*2) / 8);
}
static inline euI32 interp_32_211(euI32 p1, euI32 p2, euI32 p3)
{
return INTERP_32_MASK_1((INTERP_32_MASK_1(p1)*2 + INTERP_32_MASK_1(p2) + INTERP_32_MASK_1(p3)) / 4)
| INTERP_32_MASK_2((INTERP_32_MASK_2(p1)*2 + INTERP_32_MASK_2(p2) + INTERP_32_MASK_2(p3)) / 4);
}
static inline euI32 interp_32_611(euI32 p1, euI32 p2, euI32 p3)
{
return INTERP_32_MASK_1((INTERP_32_MASK_1(p1)*6 + INTERP_32_MASK_1(p2) + INTERP_32_MASK_1(p3)) / 8)
| INTERP_32_MASK_2((INTERP_32_MASK_2(p1)*6 + INTERP_32_MASK_2(p2) + INTERP_32_MASK_2(p3)) / 8);
}
static inline euI32 interp_32_71(euI32 p1, euI32 p2)
{
return INTERP_32_MASK_1((INTERP_32_MASK_1(p1)*7 + INTERP_32_MASK_1(p2)) / 8)
| INTERP_32_MASK_2((INTERP_32_MASK_2(p1)*7 + INTERP_32_MASK_2(p2)) / 8);
}
static inline euI32 interp_32_772(euI32 p1, euI32 p2, euI32 p3)
{
return INTERP_32_MASK_1(((INTERP_32_MASK_1(p1) + INTERP_32_MASK_1(p2))*7 + INTERP_32_MASK_1(p3)*2) / 16)
| INTERP_32_MASK_2(((INTERP_32_MASK_2(p1) + INTERP_32_MASK_2(p2))*7 + INTERP_32_MASK_2(p3)*2) / 16);
}
static inline euI32 interp_32_11(euI32 p1, euI32 p2)
{
return INTERP_32_MASK_1((INTERP_32_MASK_1(p1) + INTERP_32_MASK_1(p2)) / 2)
| INTERP_32_MASK_2((INTERP_32_MASK_2(p1) + INTERP_32_MASK_2(p2)) / 2);
}
static inline euI32 interp_32_31(euI32 p1, euI32 p2)
{
return INTERP_32_MASK_1((INTERP_32_MASK_1(p1)*3 + INTERP_32_MASK_1(p2)) / 4)
| INTERP_32_MASK_2((INTERP_32_MASK_2(p1)*3 + INTERP_32_MASK_2(p2)) / 4);
}
static inline euI32 interp_32_1411(euI32 p1, euI32 p2, euI32 p3)
{
return INTERP_32_MASK_1((INTERP_32_MASK_1(p1)*14 + INTERP_32_MASK_1(p2) + INTERP_32_MASK_1(p3)) / 16)
| INTERP_32_MASK_2((INTERP_32_MASK_2(p1)*14 + INTERP_32_MASK_2(p2) + INTERP_32_MASK_2(p3)) / 16);
}
static inline euI32 interp_32_431(euI32 p1, euI32 p2, euI32 p3)
{
return INTERP_32_MASK_1((INTERP_32_MASK_1(p1)*4 + INTERP_32_MASK_1(p2)*3 + INTERP_32_MASK_1(p3)) / 8)
| INTERP_32_MASK_2((INTERP_32_MASK_2(p1)*4 + INTERP_32_MASK_2(p2)*3 + INTERP_32_MASK_2(p3)) / 8);
}
static inline euI32 interp_32_53(euI32 p1, euI32 p2)
{
return INTERP_32_MASK_1((INTERP_32_MASK_1(p1)*5 + INTERP_32_MASK_1(p2)*3) / 8)
| INTERP_32_MASK_2((INTERP_32_MASK_2(p1)*5 + INTERP_32_MASK_2(p2)*3) / 8);
}
static inline euI32 interp_32_151(euI32 p1, euI32 p2)
{
return INTERP_32_MASK_1((INTERP_32_MASK_1(p1)*15 + INTERP_32_MASK_1(p2)) / 16)
| INTERP_32_MASK_2((INTERP_32_MASK_2(p1)*15 + INTERP_32_MASK_2(p2)) / 16);
}
static inline euI32 interp_32_97(euI32 p1, euI32 p2)
{
return INTERP_32_MASK_1((INTERP_32_MASK_1(p1)*9 + INTERP_32_MASK_1(p2)*7) / 16)
| INTERP_32_MASK_2((INTERP_32_MASK_2(p1)*9 + INTERP_32_MASK_2(p2)*7) / 16);
}
/***************************************************************************/
/* diff */
#define INTERP_Y_LIMIT (0x30*4)
#define INTERP_U_LIMIT (0x07*4)
#define INTERP_V_LIMIT (0x06*8)
static int interp_16_diff(euI16 p1, euI16 p2)
{
int r, g, b;
int y, u, v;
if (p1 == p2)
return 0;
if (interp_bits_per_pixel == 16) {
b = (int)((p1 & 0x1F) - (p2 & 0x1F)) << 3;
g = (int)((p1 & 0x7E0) - (p2 & 0x7E0)) >> 3;
r = (int)((p1 & 0xF800) - (p2 & 0xF800)) >> 8;
} else {
b = (int)((p1 & 0x1F) - (p2 & 0x1F)) << 3;
g = (int)((p1 & 0x3E0) - (p2 & 0x3E0)) >> 2;
r = (int)((p1 & 0x7C00) - (p2 & 0x7C00)) >> 7;
}
y = r + g + b;
u = r - b;
v = -r + 2*g - b;
if (y < -INTERP_Y_LIMIT || y > INTERP_Y_LIMIT)
return 1;
if (u < -INTERP_U_LIMIT || u > INTERP_U_LIMIT)
return 1;
if (v < -INTERP_V_LIMIT || v > INTERP_V_LIMIT)
return 1;
return 0;
}
static int interp_32_diff(euI32 p1, euI32 p2)
{
int r, g, b;
int y, u, v;
if ((p1 & 0xF8F8F8) == (p2 & 0xF8F8F8))
return 0;
b = (int)((p1 & 0xFF) - (p2 & 0xFF));
g = (int)((p1 & 0xFF00) - (p2 & 0xFF00)) >> 8;
r = (int)((p1 & 0xFF0000) - (p2 & 0xFF0000)) >> 16;
y = r + g + b;
u = r - b;
v = -r + 2*g - b;
if (y < -INTERP_Y_LIMIT || y > INTERP_Y_LIMIT)
return 1;
if (u < -INTERP_U_LIMIT || u > INTERP_U_LIMIT)
return 1;
if (v < -INTERP_V_LIMIT || v > INTERP_V_LIMIT)
return 1;
return 0;
}
static void interp_set(unsigned bits_per_pixel)
{
interp_bits_per_pixel = bits_per_pixel;
switch (bits_per_pixel) {
case 15 :
interp_mask[0] = 0x7C1F;
interp_mask[1] = 0x03E0;
break;
case 16 :
interp_mask[0] = 0xF81F;
interp_mask[1] = 0x07E0;
break;
case 32 :
interp_mask[0] = 0xFF00FF;
interp_mask[1] = 0x00FF00;
break;
}
}
#endif